ZDI-CAN-13271: D-Link DAP-2020 webproc var:page Stack-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the var:page parameter provided to the webproc endpoint. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| D-Link DAP-2020 |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-CAN-13271?
The severity of ZDI-CAN-13271 is high due to its potential for arbitrary code execution.
How do I fix ZDI-CAN-13271?
To fix ZDI-CAN-13271, update the D-Link DAP-2020 router to the latest firmware version provided by D-Link.
Who is affected by ZDI-CAN-13271?
ZDI-CAN-13271 affects installations of D-Link DAP-2020 routers that have not been patched.
Can ZDI-CAN-13271 be exploited remotely?
Yes, ZDI-CAN-13271 can be exploited by network-adjacent attackers without requiring authentication.
What impact does ZDI-CAN-13271 have on affected devices?
The impact of ZDI-CAN-13271 includes the potential for attackers to execute arbitrary code on the affected D-Link routers.
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- alias/CVE-2021-34863
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